RGBoard Program: First Iteration

[edimarvalentin]

This pull request introduces a new RGB LED matrix display application (rgboard) that integrates with a queue-based backend to fetch and render designs. The changes include the addition of a Makefile for build automation, new header and source files for core functionality, and a main program to tie everything together.

Build System

• Added a Makefile to define build rules, including compiler settings, source files, and linking with external libraries (libcurl, jsoncpp, and the RGB matrix library).

Core Functionality

• Introduced QueueClient in queue-client.h and queue-client.cpp to handle authentication and design retrieval from a backend API. This includes methods for obtaining a JWT token, fetching designs, and parsing JSON responses. [1] [2]
• Added display.h and display.cpp to handle rendering of pixel designs onto the RGB matrix. Includes a utility function to convert hex color codes to RGB values and a function to draw designs on the canvas. [1] [2]

Main Program

• Implemented main.cpp to initialize the RGB matrix, authenticate with the backend, and continuously fetch and display designs in a loop. Includes error handling for failed API calls and matrix initialization.

To: @irsaris @PinkSylvie @Jandel7

This is so you guys can review and see what's going on internally. Please feel free to make any comments or ask questions.

[Copilot]

Pull Request Overview

This PR introduces the first iteration of the RGBoard RGB LED matrix display application that integrates with a queue-based backend for design retrieval.

• Implements a QueueClient class with JWT authentication, design fetching, and JSON parsing.
• Adds display functionality to render designs on an RGB matrix.
• Sets up a main program to initialize the display, perform authentication, and run a continuous design-fetching loop.

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
rgboard/src/queue-client.cpp	Implements QueueClient for JWT based authentication and design retrieval.
rgboard/src/main.cpp	Contains the main loop that initializes the matrix and renders designs.
rgboard/src/display.cpp	Provides functionality to convert hex color values and draw pixels on the canvas.
rgboard/include/queue-client.h	Declares the QueueClient class and its responsibilities.
rgboard/include/display.h	Declares the design drawing function for the RGB matrix.

Files not reviewed (1)

• rgboard/Makefile: Language not supported

[Copilot]

[nitpick] Consider rephrasing or removing this informal comment to maintain a professional tone in the code.

Suggested change

	// Doing this in C++ is crazy, even the IDE is confused.
	// Constructing a JSON object with email and password fields.

[Copilot]

[nitpick] Avoid redeclaring the 'errs' variable in nested scopes to prevent potential confusion; consider using a distinct name or consolidating error handling.

Suggested change

	std::string errs;
	std::istringstream ss(raw);
	if (!Json::parseFromStream(builder, ss, &parsed, &errs)) {
	std::fprintf(stderr, "Failed to parse pixel_data string: %s\n", errs.c_str());
	std::string pixel_data_errs;
	std::istringstream ss(raw);
	if (!Json::parseFromStream(builder, ss, &parsed, &pixel_data_errs)) {
	std::fprintf(stderr, "Failed to parse pixel_data string: %s\n", pixel_data_errs.c_str());

[irsaris]

Merge this with my PR code first.

[edimarvalentin]

Merge this with my PR code first.
@irsaris
I'll review yours today. This is a different repo so it won't merge with anything.

[irsaris]

What I meant was to make sure that it works with the new code, hope that clears up any confusion.

[edimarvalentin]

What I meant was to make sure that it works with the new code, hope that clears up any confusion.

Ahh ok! I caught up. I'll update you with that soon.